JPH0220884U - - Google Patents
Info
- Publication number
- JPH0220884U JPH0220884U JP1988098179U JP9817988U JPH0220884U JP H0220884 U JPH0220884 U JP H0220884U JP 1988098179 U JP1988098179 U JP 1988098179U JP 9817988 U JP9817988 U JP 9817988U JP H0220884 U JPH0220884 U JP H0220884U
- Authority
- JP
- Japan
- Prior art keywords
- recording layer
- visible pattern
- changing
- optical disc
- thickness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988098179U JPH0220884U (hu) | 1988-07-25 | 1988-07-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988098179U JPH0220884U (hu) | 1988-07-25 | 1988-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0220884U true JPH0220884U (hu) | 1990-02-13 |
Family
ID=31324212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988098179U Pending JPH0220884U (hu) | 1988-07-25 | 1988-07-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0220884U (hu) |
-
1988
- 1988-07-25 JP JP1988098179U patent/JPH0220884U/ja active Pending
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